haha, it doesn't matter and i think that this hasn't anything to do with this... my friend used to play a formation with DL and MR (without any other wing players) and he was winning often ! you should be happy that you won. when you put a player on wrong position, the chances for you to lose are bigger, because you're losing a lot of possession, but hey, if you don't believe me, try that in next match if your AMR doesn't recover.